Edge- verb*: to put pressure on the edge of the board to control the power or speed. Also used to control the direction of travel. To go upwind, a rider must edge hard. Skiers and snowboarders also use this type of edging to turn.
Edge of the Wind Window: referring to the plane perpendicular to the direction of the wind. This is area is considered a neutral position as the kite produces little to no lift (pull) when placed along this plane.
Eye of the wind: the direction that the wind is blowing from.